What is CVE-2019-11686?

CVE-2019-11686 is a medium-severity vulnerability in Westerndigital Sandisk X300 Sd7sb6s-128g, classified under Insufficiently Protected Credentials. CVSS score: 5.5/10. Published 2020-03-10.

How severe is CVE-2019-11686?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Westerndigital Sandisk X300 Sd7sb6s-128g

CVE-2019-11686

Western Digital SanDisk X300, X300s, X400, and X600 devices: A vulnerability in the wear-leveling algorithm of the drive may cause cryptographically sensitive parameters (such as data encryption keys) to remain on the drive media after their intended erasure.

Published 2020-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (8.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

support.wdc.com/downloads.aspx (Not Applicable)
www.westerndigital.com/support/productsecurity/wdc-19007-sandisk-x300-x400-sata… (Broken Link)
www.westerndigital.com/support/productsecurity/wdc-19006-sandisk-x600-sata-ssd (Vendor Advisory)

Frequently asked questions

What is CVE-2019-11686?: CVE-2019-11686 is a medium-severity vulnerability in Westerndigital Sandisk X300 Sd7sb6s-128g, classified under Insufficiently Protected Credentials. CVSS score: 5.5/10. Published 2020-03-10.
How severe is CVE-2019-11686?: Medium severity. CVSS v3 base score is 5.5 out of 10.